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Chd|====================================================================
Chd|  QMASSREAL2                    source/elements/solid_2d/quad/qmassreal2.F
Chd|-- called by -----------
Chd|        BFORC2                        source/ale/bimat/bforc2.F     
Chd|        Q4FORC2                       source/elements/solid_2d/quad4/q4forc2.F
Chd|        QFORC2                        source/elements/solid_2d/quad/qforc2.F
Chd|-- calls ---------------
Chd|        IDP_FREE                      source/system/machine.F       
Chd|        IDP_LOCK                      source/system/machine.F       
Chd|====================================================================
      SUBROUTINE QMASSREAL2(
     1   OFF,     RHO,     MS_2D,   VNEW,
     2   NC1,     NC2,     NC3,     NC4,
     3   NEL)
C-----------------------------------------------
C   I m p l i c i t   T y p e s
C-----------------------------------------------
#include      "implicit_f.inc"
C-----------------------------------------------
C   G l o b a l   P a r a m e t e r s
C-----------------------------------------------
#include      "mvsiz_p.inc"
C-----------------------------------------------
C   C o m m o n   B l o c k s
C-----------------------------------------------
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
      INTEGER, INTENT(IN) :: NEL
C     REAL
      my_real
     .   OFF(*), RHO(*), MS_2D(*),VNEW(*)
      INTEGER NC1(*), NC2(*), NC3(*), NC4(*)
C-----------------------------------------------
C   L o c a l   V a r i a b l e s
C-----------------------------------------------
C     REAL
      my_real
     .   MASS(MVSIZ)
      INTEGER I
C-----------------------------------------------
      DO I=1,NEL
       MASS(I)=RHO(I)*VNEW(I)*OFF(I)*FOURTH
      ENDDO
C
      CALL IDP_LOCK(1)
      DO I=1,NEL
C
       MS_2D(NC1(I))=MS_2D(NC1(I)) + MASS(I)
       MS_2D(NC2(I))=MS_2D(NC2(I)) + MASS(I)
       MS_2D(NC3(I))=MS_2D(NC3(I)) + MASS(I)
       MS_2D(NC4(I))=MS_2D(NC4(I)) + MASS(I)
      ENDDO
      CALL IDP_FREE(1)
C
      RETURN
      END
